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1. Calculate the wavelength of light emitted when the following transition occurs in the hydrogen atom:
n = 3
n = 1

56 * 10-7 456.7 656.7 4.56 * 10-7 524

2. 8.63 * 10-14 J of energy is required to remove an electron from a silver atom. What is the maximum wavelength of light that can do this?
3.0 * 10-7nm 230 nm 3.0 * 1015 nm 130 nm 863 nm

3. What is the ionization energy of He+?
5246 kJ/mol 1212 kJ/mol 4064 kJ/mol 1313 kJ/mol 7241 kJ/mol

4. How many electrons in the s orbitals of chlorine?
2 4 6 8 10

5. What is the wavelength of a ball (mass 10 kg) traveling 54 m/s?
1.23 * 10-36 540 5.40 * 10-36 1.23 * 10-34 1.23 * 10-38

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